Green Computing
Green computing is the term used to denote efficient use of resources
in computing environments. This term generally relates to the use of IT
resources in conjunction with minimizing environmental impact,
sustaining economic viability and ensuring social responsibility. Green
computing is related to other similar movements like reducing the use
of environmentally hazardous materials, promoting the use of recyclable
materials, minimizing use of non-biodegradable components, and
encouraging use of sustainable resources. 
a) using more energy efficient monitors like LCDs instead of traditional CRT monitors
b) enabling "sleep" settings on PCs/laptops/printers
c) powering down your PCs, laptops, and monitors at the end of the work day
Need to get a quick picture of the impact and costs associated with leaving PCs turned on? Check out the on-line Energy Savings Calculator. Select the US flag (on the left), enter the number of PCs you have at the top, and then click the right side GO button.
Need help in developing or implementing a "green" strategy? Peruse our "Green IT" links which contain valuable information from a variety of websites. We highly recommend the first link, Green Resources for Business which points to David Suzuki's website.